• British Pharmacopoeia Volume IV
  • Appendices
  • Appendix I A. General Reagents

Tetrazolium Blue Solution, Alkaline
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Tetrazolium Blue Solution, Alkaline Immediately before use mix 1 volume of a 0.2% w/v solution of tetrazolium blue in methanol with 3 volumes of a 12% w/v solution of sodium hydroxide in methanol .